Solved: Error Call to a member function isClearShoppingCartEnabled() on null After Upgrading Magento 2

Upgraded your Magento store and facing issues on the cart page? Here is the method to solve the ‘Error Call to a member function isClearShoppingCartEnabled() on null’ on the cart page after the Magento upgrade.

Magento roll-outs regular system updates, including platform improvements and features. Sometimes, these version updates also include improvements in the core code, which can make the custom development incompatible. As a result, some of the features related to the custom development may not function properly. I recently faced one such issue after upgrading a store from Magento 2.3.3 to Magento 2.4.5.

In the testing phase, we came to know that the cart page was throwing the following error:

Error: Call to a member function isClearShoppingCartEnabled() on null in /home/magento/magento2_staging/vendor/magento/module-checkout/view/frontend/templates/cart/form.phtml:59

I inspected the error, researched a bit over the internet, and found a working solution.

The cart page was custom developed, which overrode the default layout file.

It came to my notice that Magento 2 had introduced a new argument for blocks in the Magento 2 core code from version 2.3.3 onwards. The argument was missing in the custom cart part, leading to the Call to a member function isClearShoppingCartEnabled() on null in… error.

Here is what I did to solve the issue.

Method to Solve Error Call to a member function isClearShoppingCartEnabled() on null After Upgrading Magento 2

You can follow the steps below to solve the isClearShoppingCartEnabled() on null error after upgrading Magento 2.

• Step 1: Search your custom theme for XML files where the Magento_Checkout::cart/form.phtml is being used.
• Step 2: Open the XML file, and add the following argument in the <block>:
  <arguments>

<argument name="view_model" xsi_type="object">MagentoCheckoutViewModelCart</argument>

</arguments>
• Step 3: Save the file.

And that’s it..!

The issue will be solved.

I hope the above solution will help you solve ‘Error Call to a member function isClearShoppingCartEnabled() on null’ after upgrading Magento 2.

A solution to a similar error after Magento 2 upgrade:

• Fatal Error: Uncaught Error: Call to a Member Function getSectionNames()

If you are still facing the same issue or any other problems after upgrading your store, it is advisable to consult a professional Magento 2 developer to help you. Meetanshi has a team of Adobe-certified Magento 2 experts who can help you solve any post-upgrade issues. You may also consider opting for our annual Magento upgrade service to upgrade your store to the latest version throughout the year without any hurdles!